Steps to reproduce:
1. Create new Unity project
2. Install VFX package
3. In Project window create “Simple Loop” VFX
4. Open “New VFX” Asset
5. Drag “New VFX” from Project window to Hierarchy window
6. Observe the Console window

Actual results: Warning is thrown in the Console window - “Control UnityEditor.VFX.UI.VFXComponentBoardBoundsSystemUI uses the deprecated UxmlTraits API. Its attributes were ignored on import, which may cause visual errors or missing data. Update the control’s script to use the UxmlAttribute API. Learn more.
UnityEditor.VFX.AdvancedVisualEffectEditor:OnEnable () (at ./Library/PackageCache/com.unity.visualeffectgraph@8f1733711b2c/Editor/Inspector/AdvancedVisualEffectEditor.cs:113)”

Expected results: No warnings are thrown

Reproducible with versions: 6000.4.0a2, 6000.4.0a3

Not reproducible with versions: 6000.4.0a1

Tested on (OS): Windows 11